.body{
	width: 100%;
	height: 100%;
	background-color: #e7ebee;
}
.top{
	width: 100%;
	height: 140rpx;
	line-height: 140rpx;
	font-size: 36rpx;
	font-weight: 500;
	background-color: #fff;
	position: relative;
	top: 0;
}
i{
	margin-left: 10rpx;
}
text{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
}
.right{
	float: right;
	font-size: 44rpx;
	margin-right: 20rpx;
}
.center{
	width: 100%;
	height: 100%;
	position: absolute;
	background-color: #e7ebee;
}
.item{
	height: 210rpx;
	margin: 46rpx 0 58rpx 28rpx;
}	
.two{
	width: 310rpx;
	height: 210rpx;
	margin-left: 18rpx;
	}
.time{
	width: 162rpx;
	height: 40rpx;
	background-color: #c7cbce;
	margin: 0 auto;
	font-size: 19rpx;
	line-height: 40rpx;
	text-align: center;
	color: #fff;
}
.font{
	width: 100%;
	height: 210rpx;
	margin: 16rpx 0 27rpx 28rpx;
}
.two{
	width: 532rpx;
	height: 210rpx;
	margin-left: 18rpx;
}		
.video{
	height: 311rpx;
	margin-left: 28rpx;
}
.two{
	width: 180rpx;
	height: 311rpx;
	margin-left: 18rpx;
}
.main{
	height: 207rpx;
	margin-top: 60rpx;
	float: right;
}
.problem_one{
	height: 82rpx;
	border-top: 1px solid #e7ebee;
	margin-bottom: 37rpx;
	position: relative;
}
.read{
	display: block;
	margin: 10rpx 0 0 -249rpx;
	font-size: 22rpx;
	color: #cdd1d4;
	float: left;
}
.box{
	height: 78rpx;
	background-color: #60c696;
	color: #fff;
	padding: 0 15rpx 0 15rpx;
	box-sizing: border-box;
	line-height: 78rpx;
	text-align: center;
	float: right;
	margin-right: 110rpx;
}
.one{
	width: 79rpx;
	height: 79rpx;
}

.bottom{
	width: 100%;
	height: 142rpx;
	background-color: #f3f4f6;
	position: fixed;
	bottom: 0;
	line-height: 145rpx;
}
.constant{
	width: 100%;
	margin: 0 auto;
	display: flex;
	justify-content: flex-start;
}
i{
	font-size: 44rpx;
	padding-left: 20rpx;
	float: left;
}
.input{
	width: 100%;
	height: 77rpx;
	background-color: #fff;
	float: left;
	margin: 30rpx 0 0 18rpx;
	padding: 22rpx 0 0 15rpx;
}
.nav{
	height: 140rpx;
	background-color: #fff;
	overflow: hidden;
}
.nav>.header{
	margin-top: 25rpx;
}
.one{
	width: 79rpx;
	height: 79rpx;
}
.three{
	width: 532rpx;
	height: 210rpx;
	margin-left: 18rpx;
}
.five{
	width: 512rpx;
	height: 194rpx;
}
.two{
			width: 170rpx;
			height: 310rpx;
			margin-left: 18rpx;
}
.four{
	display: block;
	width: 78rpx;
	height: 78rpx;
	position: absolute;
	right: 18rpx;
}